Hello , i have lots of stretch mark on my tummy and very dark .. in pregnancy i have applied bio-oil. its now 3 years. but i can see my stretch marks look very bad. its not reduced at all

A. by using bio oil it only helps fade away the stretch marks you need to use it continuously for about 5 to 6 months regularly 3 times a day only then it will give good results also you can use Scrub once in a week